Why do we need to brush teeth?

Answer: To remove bacteria and plaque

To make teeth whiter — Wrong. Whitening is a cosmetic side effect. The main purpose is removing harmful bacteria and plaque.

To strengthen tooth enamel — Wrong. Brushing doesn't add strength to enamel. Fluoride in toothpaste helps, but brushing's main job is cleaning.

To remove bacteria and plaque ✓ — Correct! Bacteria in your mouth form sticky plaque that produces acid, causing cavities. Brushing removes plaque before it hardens into tartar. Without brushing, bacteria damage teeth and gums!